<!DOCTYPE html>
<html lang="zh-Hans">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <link href="http://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
  <link rel="stylesheet" href="../css/materialize.css">
  <style>

  </style>
</head>
<body>

<a class="waves-effect waves-light btn">按钮</a>
<a class="waves-effect waves-light btn"><i class="material-icons left">cloud</i>按钮</a>
<a class="waves-effect waves-light btn"><i class="material-icons right">cloud</i>按钮</a>

</body>
</html>

<script src="../js/materialize.js"></script>